Rails wicked_pdf在Heroku上有效，但不適用於本地

Question

我正在使用wicked_pdf在Rails 3.2應用程序中生成PDF。

GEM文件：

gem 'wicked_pdf', '0.9.6'
gem 'combine_pdf'
gem 'wkhtmltopdf-binary', '0.9.9.1'

它在Heroku上效果很好，但在本地MAC上卻出現錯誤：

  Rendered costprojects/viewproject.pdf.erb (536.1ms)
Completed 500 Internal Server Error in 1623ms

    RuntimeError - Failed to execute:
    "/Users/davidburton/.rvm/gems/ruby-1.9.3-p484/bin/wkhtmltopdf" -q      --encoding "UTF-8"   "file:////var/folders/m9/vzbf4tr91yz4ftmkm_n7zr900000gp/T/wicked_pdf20170427-26825-1xrczw0.html" "/var/folders/m9/vzbf4tr91yz4ftmkm_n7zr900000gp/T/wicked_pdf_generated_file20170427-26825-1lyb9ja.pdf" 
    Error: PDF could not be generated!
     Command Error: :
      (gem) wicked_pdf-0.9.6/lib/wicked_pdf.rb:68:in `rescue in pdf_from_string'
      (gem) wicked_pdf-0.9.6/lib/wicked_pdf.rb:72:in `pdf_from_string'
      (gem) wicked_pdf-0.9.6/lib/pdf_helper.rb:63:in `make_pdf'
      (gem) wicked_pdf-0.9.6/lib/pdf_helper.rb:32:in `render_to_string_with_wicked_pdf'

Answer 1

我之前遇到過相同的錯誤，並通過以下步驟進行了修復。

在config/initializers/wicked_pdf.rb ，像這樣設置config：

WickedPdf.config = {
  exe_path: '/usr/local/bin/wkhtmltopdf'
}

Answer 2

在您的Gemfile中嘗試一下 ：

gem 'wicked_pdf'
gem 'wkhtmltopdf-binary',       group: [:development]
gem 'wkhtmltopdf-binary-edge',  group: [:production, :staging]